Improvement in Insulators for Telegraph WiresMetal or cast iron insulator with cupped dry area at bottom. Glass poured in with a conductor supporting iron rod embedded in the glass, and the cupped is coated or lined with glass, porcelain, or enamel. The bottom skirt is slanted inward 45 degrees to prevent water from splashing up inside wetting the interior surface. This feature was utilized in U-983 and U-984 made by the U. S. Pottery Co. in Bennington, VT.

Improved Compound for Telegraph Insulators, and for Other PurposesHeating earthenware insulators to 400-500 degrees and dipping into asphaltic compound that has been mixed with sulfur, silicic acid, and silicate of alumina to provide a hard, weather-resistant coating

Improvement in the Manufacture of PorcelainMixing cryolite, chiolite, and fluellite with sand and other common compounds for making glass in order to make a substance that looks similar to porcelain, but is actually glass that can be cast and formed like glass.

Improvement in Machines for Joining Tubular Lightning RodsMachine or dies for opening one end of a tubular lightning rod and compressing the end of another rod section so the two ends fit together and secured by soldering

Improvement in Machines for Making Lightning RodsMachine for making lightning rods (see 113,154) by wrapping wires around a central core, covering with a sheath of sheet copper, and coiling up the rod as it is produced

Improvement in Lightning RodsLightning rod made of sheet metal formed with spiral-fluted sides with edges locking together and crimping the edges of the star wings to on each end of two sections to secure them together

Improvement in Lightning RodsCoupling for twisted sheet metal lightning rod composed of hollow end to fit over end of rod and pinned to rod with matching threaded end so coupling parts can be screwed together

Improvement in Lightning Rod ConnectionsCoupling for twisted sheet metal lightning rod composed of hollow end to fit over end of rod and crimped to secure to rod with matching threaded end so coupling parts can be screwed together

Improvement in Lightning Rod Connector ClipsCoupling or connector clip composed of flat metal bent around the adjoining rod with external threads formed on the end so the rod can be screwed onto the clip

Improvement in Lightning RodsLightning rod made of a central galvanized iron rod twisted around with several galvanized rods all soldered together then intertwined with strips of copper that are soldered to the core

Improvement in Lightning RodsLightning rod made with a spirally fluted tubular core with one or more smaller tubular wires wrapped around in the fluted depressions with coupling having a male thread on each end to screw into end of rod which has female threads

Improvement in Conductors for Lightning RodsLightning rod conductor shaped like a trough which is galvanized on outside and lined with Russia iron on the inside and running down from rod to just below the eave with lightning rod resting in the trough

Improvement in Insulating Underground Telegraph WiresUnderground cable insulated by wrapping with cotton, hemp, or jute and saturating it with paraffin and inserting the wires in heated metal pipes flushed with air to remove moisture.

Improvement in Lightning Rod CouplingsLightning rod coupling made by inserting a tenon on the ends of rod sections, driving a non-corrosive male threaded thimble on the tenon, and screwing the ends of adjoing rods into a collar coupling

Improvement in Devices for Attaching Plungers to Glass PressesMeans of attaching a plunger to a glass press using a chuck. (This is known as the ""Gill Chuck"" and may have been used in insulator production, it is not known if Gill was employed by Hemingray at the time of this patent.)

Ball Ornament for Lightning Rods, &c.Lightning rod ball colored or silvered on the inside with a hollow glass tube to receive the rod and same sealed at the ball to prevent moisture or water from entering the ball

Lightning Rod Attachment for WindmillsLightning rod attached to windmills by means of a standard fixed rod and one that travels around with the windmill to keep the point in continuous contact with the rod conductor to ground

Process of Attaching Composition of Matter to MetalMethod of molding the composition material under pressure in metal parts and allowing it to cool to prevent expansion and create a secure attachment to the metal

Insulating Appliance for Electric BatteriesBattery jar and large battery rest insulator with upturned cup to hold insulating fluid. Some think the rods (a2) that hold the plates apart are the glass U-shaped ""rods"" known in the hobby, but there is no evidence of this in the patent.

InsulatorDevice and insulator for suspending wires using one or more insulators encased in a metal sphere with wire suspended by means of a bolt or hook set in the center of the two halves of the spherical insulator (see 286,681)

InsulatorGlass insulator with side conductor groove, threaded mounting pin, and hexagonal head to turn the insulator with a wrench for mounting in a wooden crossarm. A metal reinforcing pin is molded in the threaded end. (see patent gb1896-0019650)

High Potential InsulatorInner skirt extending down to the crossarm or through the crossarm to prevent arcing from the petticoat edges to the pin, U-944. (see patent 600,475) (see patent gb1898-0006235)

Lightning Rod ConductorLightning rod point in the form of a dragon with multiple points in the tail pointing up with numerous little points along the dragon's body that aids in collecting or dissipating the current

Fixing of Insulators for Carrying Electric Line WiresMetal pin with a threaded end for mounting an insulator and below that angular grooves to aid mounting and mortaring in brick, concrete or stone (see gb1899-0002396)

Construction for Third Rail Electric RailwaysThird rail insulator, support, and fastening device. Insulator was made by the Reconstructed Granite Co. as shown in their advertisement in EWE dated April 15, 1905.

Insulator2-piece reversible nail-knob “P. E. M. Co. knob” (made by the Porcelain Electric Mfg. Co.) formerly known as the “W. E. split knob”. When Thomas received exclusive right to make and market the knob, it was called Thomas “T. P. I. knob “.

Wire SupportMetal support shaped such that the conductor is pinched in the V-groove. The metal support fits inside a tubular insulator made of glass, porcelain or rubber that fits in a hole drilled in the crossarm.

Lightning ConductorLightning rod point with multple projections that are plated with platinum and connected to cone-shaped ground rod made of perforated copper sheet and filled with powdered charcoal and buried in a damp layer of soil

Adjustable Support for Telegraph Line WiresSplit cylinder of wood insulator for spacing line wires with external spiral grooves for receiving spiral of wire to hold the halves together and attach to insulator on adjacent wires

Means for Insulating the Supports of Electric ConduitsUse of multiple caps made of paper, felt, etc. over the threads of a pin in order to make the insulator fit tight on the pin and provide additional insulation

InsulatorCylindrical insulator with spiraling ribs to screw insulator into crossarm, center groove to hold line wire, external grooves to carry water away and drip points or serrations to allow water to drip down

Insulator for High Tension LinesSuspension insulator made of a thick rod of glass or porcelain with an inner rod made of hickory wood, which has a high tensile strength. There is a metal cap on each end screwed onto each end of the wooden rod and over the glass or porcelain rod.

Automatic Safety DeviceA rotating metal member that catches a broken wire and shorts out the line effectively turning off the power before the line drops to the ground where it could have harmed someone coming in contact with the broken wire.